A m is hung from a spring. Which is longer the period of vertical oscillations or horizontal swings.?

A m is hung from a spring. The spring can oscillate in the vertical direction or swing as a pendulum. It can not do both at the same time. Which is longer, the period of vertical oscillations or the period of the horizontal swings, and by what amount? There is also a hint to allow the unstretched spring to be L1 and the stretched spring with the m to be L2.